mirror of https://git.ffmpeg.org/ffmpeg.git
x86/fixed_dsp: add ff_butterflies_fixed_sse2
Reviewed-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: James Almer <jamrial@gmail.com>
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aa6aa2ef09
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dee579ffcd
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@ -160,5 +160,8 @@ AVFixedDSPContext * avpriv_alloc_fixed_dsp(int bit_exact)
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fdsp->butterflies_fixed = butterflies_fixed_c;
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fdsp->butterflies_fixed = butterflies_fixed_c;
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fdsp->scalarproduct_fixed = scalarproduct_fixed_c;
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fdsp->scalarproduct_fixed = scalarproduct_fixed_c;
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if (ARCH_X86)
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ff_fixed_dsp_init_x86(fdsp);
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return fdsp;
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return fdsp;
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}
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}
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@ -161,6 +161,8 @@ typedef struct AVFixedDSPContext {
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*/
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*/
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AVFixedDSPContext * avpriv_alloc_fixed_dsp(int strict);
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AVFixedDSPContext * avpriv_alloc_fixed_dsp(int strict);
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void ff_fixed_dsp_init_x86(AVFixedDSPContext *fdsp);
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/**
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/**
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* Calculate the square root
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* Calculate the square root
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*
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*
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@ -1,4 +1,5 @@
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OBJS += x86/cpu.o \
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OBJS += x86/cpu.o \
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x86/fixed_dsp_init.o \
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x86/float_dsp_init.o \
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x86/float_dsp_init.o \
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x86/lls_init.o \
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x86/lls_init.o \
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@ -8,6 +9,7 @@ EMMS_OBJS_$(HAVE_MMX_INLINE)_$(HAVE_MMX_EXTERNAL)_$(HAVE_MM_EMPTY) = x86/emms.o
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YASM-OBJS += x86/cpuid.o \
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YASM-OBJS += x86/cpuid.o \
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$(EMMS_OBJS__yes_) \
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$(EMMS_OBJS__yes_) \
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x86/fixed_dsp.o \
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x86/float_dsp.o \
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x86/float_dsp.o \
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x86/lls.o \
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x86/lls.o \
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@ -0,0 +1,48 @@
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;*****************************************************************************
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;* x86-optimized Float DSP functions
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;*
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;* Copyright 2016 James Almer
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;*
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;* This file is part of FFmpeg.
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;*
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;* FFmpeg is free software; you can redistribute it and/or
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;* modify it under the terms of the GNU Lesser General Public
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;* License as published by the Free Software Foundation; either
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;* version 2.1 of the License, or (at your option) any later version.
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;*
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;* FFmpeg is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;* Lesser General Public License for more details.
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;*
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;* You should have received a copy of the GNU Lesser General Public
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;* License along with FFmpeg; if not, write to the Free Software
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;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;******************************************************************************
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%include "x86util.asm"
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SECTION .text
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;-----------------------------------------------------------------------------
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; void ff_butterflies_fixed(float *src0, float *src1, int len);
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;-----------------------------------------------------------------------------
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INIT_XMM sse2
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cglobal butterflies_fixed, 3,3,3, src0, src1, len
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shl lend, 2
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add src0q, lenq
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add src1q, lenq
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neg lenq
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align 16
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.loop:
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mova m0, [src0q + lenq]
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mova m1, [src1q + lenq]
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mova m2, m0
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paddd m0, m1
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psubd m2, m1
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mova [src0q + lenq], m0
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mova [src1q + lenq], m2
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add lenq, mmsize
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jl .loop
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RET
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@ -0,0 +1,35 @@
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/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include "libavutil/attributes.h"
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#include "libavutil/cpu.h"
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#include "libavutil/fixed_dsp.h"
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#include "cpu.h"
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void ff_butterflies_fixed_sse2(int *src0, int *src1, int len);
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av_cold void ff_fixed_dsp_init_x86(AVFixedDSPContext *fdsp)
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{
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int cpu_flags = av_get_cpu_flags();
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if (EXTERNAL_SSE2(cpu_flags)) {
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fdsp->butterflies_fixed = ff_butterflies_fixed_sse2;
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}
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}
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